{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc3a8a42a950eb528d5ac919f0292b7e1927cca395e7a2b3ec974a3e42781a8af",
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    "signer": "0x6d75bF5debA06aF9d3258742e974B93dC4fD227f",
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}